ZIP Code 74331 — Afton, OK
74331 is a standard (street delivery) ZIP code serving Afton, Oklahoma, in Delaware County. To mail something here you only need these five digits — but the four-digit extension narrows delivery to a single point, and it is what USPS bulk postage discounts are priced on.
ZIP code 74331 at a glance
| ZIP code | 74331 |
|---|---|
| Primary city | Afton |
| State | Oklahoma (OK) |
| County | Delaware FIPS 40041 |
| ZIP type | Standard (street delivery) |
| Time zone | America/Chicago |
| Population | 7,058 |
| Coordinates | 36.646830, -94.945900 |
How ZIP+4 works in 74331
The four digits after the hyphen encode a delivery segment inside 74331. In practice one segment usually means:
- One side of one block — odd numbers on a street between two cross streets
- A single large building, or one floor of it
- A group of PO boxes, sometimes a single box
- A single business that receives enough mail to warrant its own code
That is why 74331 has no single ZIP+4: two neighbors across the street from each other usually have different ones. Enter a street address above and we will return the exact nine-digit code along with the standardized USPS address format.
Nearby ZIP codes
Showing the closest twelve. See every ZIP code within 25 miles of 74331.
| ZIP | City | Distance |
|---|---|---|
| 74343 | Fairland, OK | 9.4 mi |
| 74349 | Ketchum, OK | 10.3 mi |
| 74344 | Grove, OK | 12 mi |
| 74340 | Disney, OK | 12.4 mi |
| 74333 | Bluejacket, OK | 12.7 mi |
| 74350 | Langley, OK | 13.7 mi |
| 74342 | Eucha, OK | 15.5 mi |
| 74301 | Vinita, OK | 16.3 mi |
| 74370 | Wyandotte, OK | 16.8 mi |
| 74354 | Miami, OK | 17.1 mi |
| 74367 | Strang, OK | 17.9 mi |
| 74346 | Jay, OK | 18.2 mi |
Questions about 74331
What is the ZIP+4 code for 74331?
74331 is the five-digit ZIP code. The ZIP+4 adds four more digits that identify a specific delivery point — usually one side of a city block, a single building, or a group of PO boxes. Because those four digits change from address to address within 74331, you need to look up a specific street address to get them.
What city is 74331?
74331 is assigned to Afton, Oklahoma, in Delaware County.
Do I need to use the ZIP+4?
It is optional for ordinary mail, but it speeds up sorting and it is required for most USPS bulk-mail postage discounts. Many address-verification and e-commerce systems also use ZIP+4 to confirm a delivery point exists.
Need thousands of these?
Upload a CSV and get ZIP+4, county, carrier route, and delivery-point data appended to every row — or call the API directly.